Driver&#39;s support cushion



FIG. 1 is a perspective view of a driver's support cushion showing my new design, the broken-line depiction of the automobile seat being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof, the rear being a mirror image of that shown;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a side elevational view thereof, the opposite side being a mirror image of that shown. 

The ornamental design for a driver's support cushion, as shown and described. 